Add 90/56 and 9/20
1st number: 1 34/56, 2nd number: 9/20
90/56 + 9/20 is 72/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
9/20 = 9 × 14/20 × 14 = 126/280 - Add the two like fractions:
450/280 + 126/280 = 450 + 126/280 = 576/280 - 576/280 simplified gives 72/35
- So, 90/56 + 9/20 = 72/35
In mixed form: 22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+18/20 90/56+9/40 90/56+27/20 90/56+9/60 90/56+45/20 90/56+63/20